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% 短学段专业课程地图
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\begin{tikzpicture}
%\node [circle,draw] (xq) at (0,1.5) {学期}; 
%\node [rectangle,draw] (kc) at (3,1.5) {课程(学分)}; 

\node [circle,draw] (s3) at (0,-2) {3}; 
\node [circle,draw] (s4) at (0,-3) {4}; 
\node [circle,draw] (s5) at (0,-4) {5}; 
\node [circle,draw] (s6) at (0,-5) {6}; 
\node [circle,draw] (s7) at (0,-7) {7}; 

\graph {(s3) -> (s4)  -> (s5) -> (s6) -> (s7) };

\node [rectangle, draw] (a3) at (2.7,-2) {{\color{blue}应用数学入门专题1}}; 
\node [rectangle, draw] (b3) at (6.8,-2) {{\color{blue}大学数学专题1}}; 

\node [rectangle, draw] (a4) at (2.7,-3) {{\color{blue}应用数学前沿专题1}}; 
\node [rectangle, draw] (b4) at (6.8,-3) {{\color{blue}数据挖掘专题1}};

\node [rectangle, draw] (a5) at (2.3,-4) {{\color{blue}随机分析入门1}}; 
\node [rectangle, draw] (b5) at (5.7,-4) {{\color{blue}数据可视化1}}; 
\node [rectangle, draw] (b5) at (9.2,-4) {{\color{blue}数学与投资实践1}}; 

\node [rectangle, draw] (a6) at (2.3,-5) {{\color{blue}随机运筹专题1}}; 
\node [rectangle, draw] (b6) at (6.75,-5) {{\color{blue}统计思维和统计技能案例1}}; 
\node [rectangle, draw] (b6) at (3.1,-6) {{\color{blue}金融数学前沿系列专题1}}; 

\node [rectangle, draw] (a7) at (3.1,-7) {{\color{blue}国（境）外学习和实践2}}; 

\end{tikzpicture}

